Railway is considered to be the transport of the future. Accordingly, it has to meet certain standards of which the safety is the most important. This Thesis aims to describe how the highest safety level can be achieved in the interstation area by using electronic railway signalling equipment. Railway signalling equipment is part of control-command and signalling subsystems. This Thesis will also include the comparison between the parts of signalling devices (axle counters) which are currently implemented on certain sections of the railway track in Republic of Croatia and in what way they directly participate in defining the safety level of railway traffic. Research methodology included full scale analysis of available documentation, conversations with relevant experts from this field and on-site investigation. The conclusions of this Thesis confirmed the fact that the highest safety level can be achieved with the use of the mentioned technology.